baber/WOPTO huggingface dataset:
Patent GB-368564-A (GB)
Title: Improved method of producing motive forces for the propulsion of vehicles or aircraft
IPC: F02K7/06
Filed: 1931-04-15
Abstract: 368,564. Propelling by fluid jets. SCHMIDT, P., 10, Arcostrasse, Munich, Germany. April 15, 1931, No. 11215. Convention date, April 23, 1930. [Classes 4 and 114.] For producing reaction forces on aircraft and other vehicles a combustible mixture is introduced through valves 2<1> into a tube 1 open at its opposite end, the tube containing a quantity of air ten to fifty times the mass of the combustible mixture which is exploded to drive out the air from the end 3 as the valves 2<1> automatically close. A fresh mass of cold air is introduced after each explosion. Part of the energy of the expelled gases may be used to drive a blower for recharging the tube, or a new charge may be induced through the valves 2<1> by the piston effect of the accelerated volume of air. A mixture of petrol and air is introduced as the combustible mixture, or petrol may be injected into the inlet end of the tube. The explosion chambers may be separated from the reaction chambers or a number of reaction chambers may be fed rom one explosion chamber. A number of such tubes 1 may be secured along an aircraft fuselage and fired in sequence, or along the span of and within a wing with appropriate deflectors at the outlets. Such outlets may be provided at three points in a horizontal triangle on the aircraft and vertical reactions controlled automatically by varying the quantity of combustible mixture in accordance with instruments indicating deviations from an equilibrium position. The device may be used with or instead of the usual screw propeller. According to the Specification as open to inspection under Sect. 91 (3) (a) the device may be applied to watercraft and the accelerated mass may consist of water. This subjectmatter does not appear in the Specification as accepted.
Patent GB-701208-A (GB)
Title: Improvements relating to porous mortar and concrete and to foaming agents for producing the same
IPC: C04B24/14
Filed: 1950-05-05
Abstract: Proteinaceous foaming agents are prepared by slowly adding an aqueous suspension of alkaline-earth metal hydroxide to an aqueous suspension of acid casein, while stirring, to neutralize the casein, the addition being so made that at no time during the admixture does the pH of the mixture exceed 7, then allowing the mixture to stand at neutral reaction for some time, e.g., 4-5 days and finally adding a further quantity of the metal hydroxide until a clear colloidal solution is produced.  The resting period is such that the subsequent addition of hydroxide produces substantially no gluey non-foaming casein decomposition products. The subsequent addition is preferably made in stages.  The casein may be acid precipitated casein or rennet casein.  The foaming agent may be used in the production of porous cement, mortar or plaster (see Group V).  In an example lime milk is slowly added to an aqueous suspension of powdered acid casein the pH being controlled at 7, the neutral mixture is allowed to stand 4-5 days, thereupon a further quantity of lime milk is added converting the mixture to a milky solution and later more lime milk is added to produce the required clear solution.ALSO:Porous concrete, lime mortar, lime-cement mortar and plaster are prepared by incorporating a foaming agent, derived from casein as described hereinafter, into the initial mix and aerating thereby yielding on setting a porous light weight product.  The forming agent is prepared by slowly adding a suspension of an alkaline earth metal hydroxide to an aqueous suspension of acid casein to neutralise the casein, the pH at no time exceeding 7, allowing the mixture at neutral reaction to stand, e.g. for 4-5 days and subsequently adding more of the alkaline earth metal hydoxide until a clear colloidal solution is produced, the final solution preferably being saturated with the metal hydroxide.  In an example, a foaming agent is prepared as above using calcium hydrate (see Group IV (b)) and the resulting solution is added to a mix of beach sand, fine gravel sand, Portland cement and water, air is whipped in for a few minutes and the product cast and air hardened; an added water : cement ratio of about 0.23 is used.
Patent GB-582184-A (GB)
Title: Improvements in or relating to the detection and quantitative determination of carbon monoxide in air or other gases at such temperatures as occur in the atmosphere and reagents therefor
Filed: 1943-07-12
Abstract: Palladous sulphite or a complex salt containing it, such as potassium palladosulphite is deposited on a carrier such as silica gel for use in detecting carbon monoxide in the atmosphere. Palladous sulphite may be made by double decomposition or by treating the hydroxide with sulphur dioxide.  Palladosulphites are prepared by reacting in aqueous medium a sulphite or pyrosulphite with a palladium salt.
Patent GB-1517433-A (GB)
Title: Internal combustion engine having an air-fuel ratio control device
IPC: F02M7/24
Filed: 1976-03-22
Abstract: 1517433 Regulating air/fuel ratio NISSAN MOTOR CO Ltd 22 March 1976 [20 March 1975 (2)] 11374/76 Heading F1B [Also in Divisions F2 and G3]  An I.C. engine has a carburetter with a well 22 interposed between a main jet 20 and a float chamber 28, the well having a main air bleed 24 and an auxiliary bleed 32, the latter being controlled by electromagnetic valve means in response to an exhaust gas sensor 66. The valve means is energized in an on/off manner via an undisclosed control circuit 64, but the resulting fluctuations in the air bleed, and hence the fuel supply, are smoothed by the valve arrangements. (See Division F2). As shown the valve means comprises a single valve having a needle 38 which is moved smoothly by a diaphragm 42; in one alternative Figs. 2-4 (not shown), a number of open/shut valves are energized sequentially by pulses, the duty ratio of which is different for each valve so that the air bleed is varied progressively, and in another Figs. 5-8 (not shown) a single valve is switched between open and "nearly closed".
Patent GB-1354623-A (GB)
Title: Sorting apparatus
IPC: B07C5/342
Filed: 1972-03-13
Abstract: 1354623 Shoots and hoppers PETTY RAY GEOPHYSICAL Inc 13 March 1972 [15 March 1971] 11561/72 Heading B8S [Also in Division G1] Sorting apparatus for granular items, e.g. rice grains, comprises a plurality of parallel inclined shoots 11 down which the grains slide to be gravitationally separated, the cross-section of the shoots being tapered such that the grains become orientated longitudinally in a single line in each shoot, a plurality of parallel vibrating shoots 17 for feeding the grains randomly through adjustable gates from a hopper 24 to the shoots 11, and an examining and rejection device at the lower end of each shoot 11. 'Each examining device includes a light source and a photo-electric cell to detect any "spotted" grains and upon such detection, a blast of air is generated at a nozzle 58 to deflect that "spotted" grain from the normal travel path into a reject bin 61, the good grains passing on to a further shoot 62. The latter may be fitted with deflecting devices for sampling the accepted grains.  In another embodiment, (shown in phantom lines) two sets of the apparatus are arranged back to back with the feed hopper compartmented.
Patent GB-211042-A (GB)
Title: Improvements relating to paint spraying
IPC: B05B16/60
Filed: 1923-04-30
Abstract: 211,042. Lucas, J. April 30, 1923. Noxious gases from manufacturing operations, collecting and conveying away. - Apparatus for the collection of fumes &c. emanating from spraypainting comprises a hood 1 provided with an exhaust duct 2 through which the fumes &c. are sucked by induction caused by a compressed-air jet 3. The exhaust duct communicates with an oil or water tank 6 having a porous cover 7. The hood 1 has hinged' side wings 11 and a hinged top wing 10 for reducing the area of the hood opening. The air-jet nozzle may be extensible.
Patent GB-567133-A (GB)
Title: Improvements in or relating to valves
IPC: B05B1/16
Filed: 1943-07-16
Abstract: 567,133. Valves. ROCKWOOD SPRINKLER CO. OF MASSACHUSETTS. July 16, 1943, No. 11596. Convention date, Sept. 12, 1942. [Classes 69 (iii) and 135] A rotary spherical valve comprises a spherical valve member with a passage therethrough engaging a ported seat of non-metallic resilient material having a ball engaging surface adapted to engage a substantial portion of the surface of the ball. The Figure shows the invention applied to a combination fire nozzle having alternative jet and spray nozzles 10, 12. The valve seat 42, preferably formed of synthetic rubber, is held in a recess in the nozzle by a screwed ring 46 engaging a flange 50 on the seat. The seat has a pair of passages elongated in cross - sectior leading to the nozzles. The ball 20 which has a transverse passage 22 adapted to connect the inlet 34 alternately to the ports 52 is held to its seat by a ring 62 of resilient material housed in a recess in the detachable inlet portion. The ball is formed with a short spindle fitting an actuating handle.
Patent GB-561427-A (GB)
Title: Improvements in or relating to flexible couplings
IPC: F16D3/56
Filed: 1942-08-20
Abstract: 561,427. Flexible couplings. SULZER FRERES SOC. ANON. Aug. 20, 1942, No. 11709. Convention date, Sept. 20, 1941. [Class 80 (ii)] A flexible coupling having inner and outer coupled parts 5, 3, connected by spring members 9, such as leaf springs, each of which is held at one end in two places 10, 11, in one part 3 and is jointed at its other end 12 to the other part 5, has at least one of the supporting places for a spring member in one of the parts connected by a flexible bridge piece to the rigid portion of that coupling. As shown, the supporting places 10 are connected to the rigid part 3 by flexible bridge pieces 13. The springs 9 are carried in a casing 7 mounted by bearings 8 on the member 5 and they are supported laterally at the intermediate points 15 and at the inner ends at the points 16. In a modification, both supporting places 10, 11 are connected flexibly to the part 3.
Patent GB-1166717-A (GB)
Title: Method of Testing Metal Parts by means of Ultra-Sonic Waves
IPC: G01B17/02
Filed: 1967-03-13
Abstract: 1,166,717. Ultrasonic inspection devices. VALLOUREC S.A. 13 March, 1967 [14 March, 1966], No. 11721/67. Heading H4D. In a method of detecting thickness variations in an article having two parallel surfaces ultrasonic energy introduced into the article in a plane normal to the surfaces is detected in the same plane after undergoing multiple reflection between the surfaces and a thickness variation is indicated by a diminution in the intensity of the detected energy. As applied to inspecting a tube 1, pulsed ultrasonic energy is introduced and detected in a diametral plane through points A, B by respective transducers 2, 4 coupled to the tube by water jets 5. The presence of a surface hollow 8 causes deviation of the ultrasonic beam from this plane and hence a reduction in the detected signal intensity as indicated on a cathode ray tube. To provide scanning of the tube wall, relative motion between the tube and the transducers is imparted in the form of a helix whose pitch is about equal to the transducer separation. The thickness inspection may be made at the same time as conventional inspection for internal defects using transverse waves.
Patent GB-592464-A (GB)
Title: A method of treating the running surfaces of machine parts to improve lubrication
IPC: F16N1/00
Filed: 1945-05-10
Abstract: 592,464. Etching. SULZER FRERES SOC. ANON. May 10, 1945, No. 11722. Convention date, May 13, 1944. [Class 100 (ii)] [Also in Groups XX, XXXIV and XXXVI] Lubricant retaining depressions are formed in the running surfaces of machine parts such as bearings, pistons, piston rings, cylinders and guides, to improve lubrication, by covering the surface with a perforated layer of a substance resistant to etching, etching by means of an acid or an alkali or electrolytically, and removing the protective layer. The surface is cleaned and freed from grease by means of water and chalk, emery powder, trichlorethylene or perchlorethylene, is coated with a light-sensitive material exposed under a screen negative, developed, the parts affected by light are burnt on, and the exposed parts are etched in nitric acid, hydrochloric acid, a mixture of acids, or an alkali solution, or the article is made the anode of an electrolyte such as a solution of ferrous sulphate ammonium chloride or sulphuric acid. Alternatively, the resist may consist of a perforated plate or a foil of rubber or rubber like material attached by adhesive, or of a coating composition such as wax, paraffin, resin, a drying oil, asphalt or synthetic substances perforated by hand or machine, e.g. by knurling. The depressions may be filled with colloidal graphite, and the edges of the depressions may be round, or may be elliptical, polygonal or bow shaped arranged in the direction of or transverse to the relative motion of the machine parts. Specification 561,788 is referred to. The Specification as open to inspection under Sect. 91 states that the depressions may be filled with lead. This subject-matter does not appear in the Specification as accepted.
Patent GB-1425572-A (GB)
Title: Digital signal regenerators
IPC: H03L7/081
Filed: 1972-03-14
Abstract: 1425572 APC systems POST OFFICE 14 March 1973 [14 March 1972] 11774/72 Heading H3A A regenerator for digital signals suitable for reducing low frequency jitter in the input signal with minimum or no hunting in a phase control loop comprises an arrangement 4, 5 for producing first and second oscillations, a phase comparator 3 to which the input digital signal and the first oscillation are applied to derive an error signal, the frequency of the first oscillation being dependent on the time integral of the error signal and a linear damping term, the frequency of the second oscillation being dependent on the error signal only and an arrangement responsive to the input digital signals and the second oscillation to form regenerated digital signals. In the embodiment shown, a linear damping term normally provided by an integrator at the input of a controlled oscillator is instead provided by an adjustable #-shifter 5 at the output of the oscillator so that the oscillator output is substantially free from jitter. The phase shifter 5 may be connected outside the control loop to receive the oscillator output and the error control signal. Alternatively, the first and second oscillations may be produced by separate oscillators with the first oscillator connected in a closed control loop and the second oscillator merely controlled by an integral of the error signal. Regeneration of the input signal is accomplished by bi-stable trigger stages 15, 16 responsive to the first and second oscillations respectively.
Patent GB-1113706-A (GB)
Title: Window guide for sliding window panes, particularly on motor vehicles
IPC: B60J10/17
Filed: 1966-03-17
Abstract: 1,113,706. Glass runs. DRAFTEX G.m.b.H. 17 March, 1966 [28 Oct., 1965], No. 11780/66. Heading E1J. A glass run for a sliding glass pane, particularly for vehicle windows comprises a metalthrough section strip 4 enclosed by a PVC trough-shaped lining moulded or extruded on the strip 4, the interior surfaces of the lining carrying strips 3 of basic fabric coated with thermoplastic material and held to the lining by longitudinal ribs 5, 6 which override the longitudinal edges of the fabric strips, these latter having thereon roughened synthetic plush 2 electrostatically applied to the basic fabric preferably coated with a thermoplastic material. The fabric 3 may be inlaid intothe lining between the ribs 5 and 6 during the moulding or extrusion process of forming the troughshaped member.
Patent GB-610877-A (GB)
Title: Improvements in or relating to roofs and walls for buildings and the like
IPC: E04D3/36
Filed: 1946-04-17
Abstract: 610,877. Joining metal sheets; roofs; walls. MOURITZ, C., RUSSELL, A. W., and IMPERIAL, CHEMICAL INDUSTRIES Ltd. April 17, 1946, No. 11821. [Class 20(ii)] Pre-formed composite panels, each including an outer skin of thin sheet metal having skirt-portions along the side edges, are joined to form a roof or wall by a channel-section member forming part of the roof or wall framing, into which the collateral skirt-portions of adjacent panels are clamped together without perforation and to which the panels are mechanically connected independently of the sheet metal clamping. The panels, comprising plywood bases 2, layers of wall-boarding &c. 3 and thin sheet metal outer skins 4, have the skirt portions 4a of the metal skins sandwiched between clamping strips 5 located in a channelsection member 6 which is screwed to the roof &c. frame member 9 and which has flanges 6a for supporting the panels and for receiving securing screws 7. The clamping strips 5 are thrust into gripping engagement with the skirt portions 4a by screws 8 having locknuts 8a. Sealing composition 17 may be applied. According to a modification, angle sections are secured to the edges of the panel bases, the skirtportions being sandwiched between adjacent flanges which are located within a channel-section and secured by clamping screws. In a further modification, angle sections 14, Fig. 3, with beaded edges 14a are secured to the panel edges and the skirt portions 4a are sandwiched between adjacent flanges, which are then pressed into interlocking engagement with bends 15a formed on a channel-section 15 having clamping draw bolts 16.
Patent GB-180312-A (GB)
IPC: B61C9/30
Filed: 1922-04-27
Abstract: 180,312. Krupp Akt.-Ges., F. May 12, 1921, [Convention date]. Dust-excluding casings and gear-boxes.- Comprises a turbine locomotive having gearing between the turbine and the driving axles, in which all the toothed gearing is enclosed in a casing located between the side girders of the locomotive frame. The turbine shaft C drives the axles through toothed gearing c<1>-D, E-G, a crank-shaft H, and coupling rods J. The turbine casing a<1> is made part of the gear casing A which is formed with guides a<2> to slide upon the frame members B, and is located in position by screws. In a modification, two turbines are employed driving the central pinion E through two separate trains of gearing such as c<1>-D.
Patent GB-228097-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/42
Filed: 1924-05-13
Abstract: 228,097. Allis-Chalmers Manufacturing Co., (Assignees of Humphrey, N. W.). Jan. 21, 1924, [Convention date]. Casings; adjusting position of impeller. - A pump casing has upon its inner wall a number of spaced and raised portions for seating a protective flexible lining. The main casing is in two parts 2, 3 with raised annular portions 45, 46, 47, 48 and the lining is composed of soft rubber sections 12, 13 with metal backing plates 14, 15. Flanges 21, 22 on the rubber sections together with the metal backing plates and clamping plates 25 are secured between the casing parts 2, 3 by bolts 18. The tubular portion of the backing plate 14 at the suction end is tapered as shown and is embedded in the rubber liner which extends to the end of the inlet, and with the resilient gasket 56 forms a seal between the lining and casing. Similar terminations to the backing plates are made at the inner end of the stuffing- box 28 and at the discharge outlet. The hub and vanes of the impeller 4 are covered with resilient material and the position of the impeller is adjusted by means of a sleeve 35 which passes through the stuffing-box 28. An external left-handed thread 36 on the sleeve engages a thread in the impeller hub and an internal righthanded thread at the other end of the sleeve engages a thread on the shaft. The impeller is locked in its adjusted position by a set screw 39 which passes through a slot in the sleeve. Removal of the casing section 2 with its liner permits access to all portions of the casing interior.
Patent GB-1341535-A (GB)
Inventor: FRENKLE G
IPC: F02N19/08
Filed: 1972-03-14
Abstract: 1341535 Combustion air heaters DAIMLERBENZ A G 14 March 1972 [25 March 1971] 11880/72 Heading F1B A combustion air pre-heating system in a compression ignition engine comprises an intake duct 1, Fig.1 and an insert member including a spark plug 14, Fig.4 and a fuel injector jet 15, which project into the intake duct and have a part 19 which partly covers the spark plug and fuel injector and a guard plate 2 for screening the combustion flame. The intake pipe 1, Fig.1 feeds the cylinder banks of a Vee engine with the combustion air entering centrally in the direction of the arrows.
Patent GB-766572-A (GB)
Title: Improvements in or relating to submarine escape chambers
IPC: B63G8/41
Filed: 1954-04-26
Abstract: 766,572. Submarines. LEE, S., GILBERT, P., and THORNE, C. Oct. 5, 1954 [April 26, 1954], No. 11924/54. Drawings to Specification. Class 113. A releasable chamber constituting a ballast tank of a submarine essential for the normal operation of the submarine is adapted to be detached and equipped for use as an escape chamber.
Patent GB-768915-A (GB)
Title: Improvements in or relating to liquid filters
IPC: B01D35/06
Filed: 1955-04-26
Abstract: 768,915. Liquid filters. BOSCH GES., R. April 26, 1955 [April 30, 1954], No. 11953/55. Class 46. In a removable filter assembly for a liquid filter embodying a housing 1 and a detachable sealing cover 5 which together define a filter chamber 2 having a central fluid outlet 4 in the base thereof and a fluid inlet 3 and comprising a tubular supporting member 12 communicating with the fluid outlet and sealing same from direct communication with the filter chamber when inserted in the latter and having at least one opening (longitudinal slot 18) for communication with the inside of a hollow filter body 13 composed of a stack of strainer discs which encircles and is carried on the supporting member 12, a cup-shaped member 20 is attached to the lower end region of the supporting member by means of a bayonet connection so as to at least in part surround the filter body 13 whilst being generally spaced therefrom. The cover 5 has a central attachment 6 carrying a tubular housing 24 with a pressure relief valve 26 and a permanent magnet 28. When the filter requires cleaning the whole assembly, including the member 20, may be bodily removed with the cover 5.
Patent GB-560156-A (GB)
Title: Improvements in or relating to means for economising fuel in stoves or fires
IPC: F24B1/193
Filed: 1942-08-26
Abstract: 560,156. Fuel economisers. ASHBY, S. G. Aug. 26,1942, No. 11993. [Class 126] To reduce the consumption of fuel and to allow the burning of fuels normally unsuitable for combustion in open fire grates a canopylike fitting 1 pivots about grips 3 engaging the back of the firegrate and rests on the fuel. The grips 3 are mounted in side plates 4 adjustably secured to the fitting 1 and are pressed out. wardly to engage the sides of the fireback by levers 7 attached by a spring 5 to the fitting. Air passes to the fire through a duct 10 resting on the fuel and. depressions 11. The smoke passes to the chimney past the curved edges of the plates 4. A tool is provided for releasing the grips 3 and removing the fitting from the grate.